SECURE COMMUNICATION BETWEEN A DATA PROCESSING DEVICE AND A SECURITY MODULE

摘要

The invention concerns the creation of a secure link between a data processing device (MOB) and a secure module (USIM). The data processing device is capable of communicating with a security module which stores at least one secret data (k) required for execution, by the device, of a computer task. The invention is characterized in that it comprises a first step of identifying the processing data device and the module for which a secure link must be set up for transmitting said at least one secret data (k) from the module to the device. Then a trusted server delivers at least one encryption key (K) both to the module (USIM) and to the data processing device (MOB) identified. Thereafter, the secret data (k) is encrypted in the module by means of said at least one encryption key (K), and transmitted to the identified device (MOB). The device decrypts the received result using said at least one delivered encryption key (K), and obtains the secret data (k). Finally, the device performs the task using the secret key (k).